Which of the operator is used to test if a particular property exists or not?

Question $11$Select one:

a$.$

in

b$.$

exist

c$.$

within

d$.$

exists

Question $12$

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The JavaScript$$s syntax calling $($ or executing $)$ a function or method is called

Question $12$Select one:

a$.$

Primary expression

b$.$

Functional expression

c$.$

Invocation expression

d$.$

Property Access Expression

Question $13$

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$$An expression that can legally appear on the left side of an assignment expression.$$ is a well known explanation for variables, properties of objects, and elements of arrays. They are called

Question $13$Select one:

a$.$

Properties

b$.$

Prototypes

c$.$

Lvalue

d$.$

Definition

Question $14$

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The script tag must be placed in

Question $14$Select one:

a$.$

head

b$.$

head and body

c$.$

title and head

d$.$

All of the option mentioned

Question $15$

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JavaScript can be written

Question $15$Select one:

a$.$

directly into JS file and included into HTML

b$.$

directly on the server page

c$.$

directly into HTML pages

d$.$

All of the option mentioned